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(No Model.)l

C. W. ARMOUR.

PPER FOR ROOFING FELT, 6m. l No. 811,888. Patented Peb. 1o, 1885.

WiZ/aelsues.' Iman/Ton 7 NITED STATES Partnr trice,

GIIARLES W. ARMOUR, OF SUMMIT, NEW JERSEY.'

SPECIFICATION forming part of Letters Patent No. 311,938, dated February 10, 1885.

Application filed January 3, 1855.

T0 @ZZ whom t may concer-7D:

Be it known that I, GHARLEs W. ARMOUR, of Summit, Unioncounty, State of New Jersey, have invented certain Improvementsin Paper, of which the following isa specification.V This invention consists of a paper composed of spent tanbark, meadow-hay, and millwaste, with both sides covered with a layer of pulp composed of satinet rags, colors, shoddy, and straw.

The object of this invention is to produce a strong and smooth paper suitable for roofingfelt, and for saturating with coaltar, pitch, and oils.

The drawing represents an elevation of the machine used to make my fabric.

The process of making this paper is as follows: A paper-making machine is arranged, as shown, with three (3) separate vats, each provided witha forming-cylinder, and with a felt arranged to pass over all the cylinders.

, The central vat, E, is supplied with the pulp used for forming the insidey or center sheet, as described, while the two end vats, D and V F, are supplied with the pulp used for form# ing the layers for covering both sides of the paper. When the machine is set -in motion, the layer of pulp will be deposited on the felt by t-he cylinder A at the rear end, and as it passes` along cylinder B will deposit on the iirst layer a layer of pulp used for forming the inside or center sheet, and as it passes over the last cylinder, C, that will deposit another layer of the same material as deposited by cylinder A, thus forming a strong smooth sheet of paper, of any thickness required, suit- (No model.)

' combination used therefor.

I have invented a new combination of materials .for a dii'ferent purpose, consisting of three la'yers compacted into a single sheet, but cheaper in cost, and utilizing new substances, in combination with awider scope in its application.

I am ralso aware of the Letters Patent issued to Frank J. Mather, No. 27 8, 350, datedvMarch 19, 1883, which I own; but that patent is for a combination of materials uniform through the sheet, and for a dil-'ferent combination, in some particulars, from that which I employ, while my combination consists entirely ot' different kinds of materials, forming three distinct layers in a single compacted sheet.

What I claim as a new article of manufacture is l A paper composed of a mixture of spent tan-bark, meadow-hay, and mill-waste, and covered on both sides with a layer of pulp composed of satinet rags, colors, shoddy, and straw, thus making' a strong smooth paper, suitable for the purposes and substantially in. the manner described.

CHARLES W. ARMOIIR.

In presence of- P. J. ARMOUR, RICHARD P. ROMAINE. 

